Sterling silver blue john round scroll ring r067 this elegantring is part of our heritage handmade jewellery collection and boasts a strikingroundcabochonof thefinest blue johnstone that has been sourced locally from the treak cliff cavern in castleton the stone is set within an exquisite sterling silver scroll design and completed with a classic sterling silver band all our blue john jewellery is designed and crafted within our very own workshops in derbyshire where a team of skilled